LANCP$HELP.HLB  —  SET  DEVICE  Qualifiers (Ethernet Devices)

1    /AUTONEGOTIATE 

       /AUTONEGOTIATE (default)
       /NOAUTONEGOTIATE

    Enables or disables the use of auto-negotiation to determine the
    link settings. You may need to disable link auto-negotiation
    when connected to a switch or device that does support auto
    negotiation.

2    /FLOW_CONTROL 

       /FLOW_CONTROL (default)
       /NOFLOW_CONTROL

    Enables flow control on a LAN device.

3    /FULL_DUPLEX 

       /FULL_DUPLEX
       /NOFULL_DUPLEX (default)

    Enables full-duplex operation of a LAN device. Before full-duplex
    operation results from the use of this qualifier, additional
    device or network hardware setup may be required. Some devices
    may be enabled for full-duplex operation by default. Some devices
    may not allow the setting to be changed.

    The /NOFULL_DUPLEX qualifier disables full-duplex operation.

4    /JUMBO 

       /JUMBO
       /NOJUMBO (default)

    Enables the use of jumbo frames on a LAN device. Only Gigabit
    Ethernet NICs support jumbo frames.

5    /MEDIA 

       /MEDIA=value

    Selects the cable connection. Normally, the selection is made
    during device initialization using a limited autosensing
    algorithm that selects twisted pair, but fails over to AUI
    (Attachment Unit Interface) if twisted pair does not appear to be
    functional. Thereafter, a cabling change would require a reboot
    of the system to take effect. This command allows you to change
    the selection without rebooting.

    Acceptable values are AUI (10Base2, 10Base5), TWISTEDPAIR
    (10BaseT), and AUTOSENSE (reperform the limited autosense
    algorithm). The default value is AUTOSENSE.

    Some devices, such as the DE435, require a jumper change on the
    Ethernet card to switch between 10Base2 and 10Base5 (thinwire and
    thickwire). Other devices, such as the DE434, DE436, and DE500,
    have only twisted pair connections.

6    /SPEED 

       /SPEED=value

    Sets the speed of the LAN.

    Valid values are 10, 100, 1000, 10000, or autonegotiate; the last
    choice, autonegotiate, selects the 10 megabits per second for
    Ethernet, 100 for Fast Ethernet, 1000 for Gigabit Ethernet, and
    10000 for 10-Gigabit Ethernet. If you select autonegotiate, the
    LAN driver redoes auto-negotiation.
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